← Back to Patent Explorer
US4365794A Expired / Lapsed US ⏱️ 0.0 years remaining

Toggle arm inverter

Assignee: Xerox Corp
•
Filing: 1980-10-02
•
Granted: 1982-12-28
•
Expires: 2000-10-02
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A copier capable of producing simplex and duplex copies includes an inverter that has constantly rotating input and output rollers mounted for pivotal movement into and out of engagement with a reversibly rotatable sleeve that is mounted on a stationary shaft. When inversion of a sheet is required, a shiftable gate deflects the sheet into a nip formed between the input rollers and the rotatable sleeve. A sensor senses the trail edge of the sheet and through a controller causes a reversible drive motor to pivot the input rollers out of engagement with the sleeve while simultaneously placing the output rollers into driving engagement with the sleeve. The sheet is then driven by the output rollers out of the inverter and back into the paper path of the copier for further processing.

Inventors

  • 👤 George J. Roller

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 21:40
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/23; B; B65; B65H; B65H29/00

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 99 words
Inverter device having an inverting path for use in a sheet conveying apparatus, comprising: first roller means mounted on a first shaft for forwarding a sheet into said inverting path; second roller means mounted on a second shaft for forwarding a sheet out of said inverting path, said first and second shafts being supported by brackets that are pivotally connected to a rotatable third shaft; reversible drive means connected to said third shaft; and pivot means for drivingly connecting either said first or second roller means to said sheet as a result of actuation of said reversible drive means.
Claim 2
Dependent Claim 99 words
Inverter device having an inverting path for use in a sheet conveying apparatus, comprising: first roller means mounted on a first shaft for forwarding a sheet into said inverting path; second roller means mounted on a second shaft for forwarding a sheet out of said inverting path, said first and second shafts being supported by brackets that are pivotally connected to a rotatable third shaft; reversible drive means connected to said third shaft; and pivot means for drivingly connecting either said first or second roller means to said sheet as a result of actuation of said reversible drive means.
Claim 3
Dependent Claim 17 words
The inverter of claim 1, wherein said first and second roller means are pivoted as a unit.
Claim 4
Dependent Claim 24 words
The inverter of claim 1, wherein said first and second roller means form nips alternately with a sleeve rotatably mounted on a stationary shaft.
Claim 5
Dependent Claim 12 words
The inverter of claim 3, wherein said sleeve is made of plastic.

References Cited (Backward Citations)

US2901246A Cited
US3490666A Cited
US3537661A Cited
US3761075A Cited
US3942785A Cited
US4078789A Cited
US4200386A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-12-27 1986-06-28 1986-12-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-12-27 1990-06-28 1990-12-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-12-27 1994-06-28 1994-12-28 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag